10899839 has 4 divisors (see below), whose sum is σ = 11541024. Its totient is φ = 10258656.

The previous prime is 10899829. The next prime is 10899869. The reversal of 10899839 is 93899801.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10899839 - 2¹² = 10895743 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10899793 and 10899802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10899829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320567 + ... + 320600.

It is an arithmetic number, because the mean of its divisors is an integer number (2885256).

Almost surely, 2^10899839 is an apocalyptic number.

10899839 is a deficient number, since it is larger than the sum of its proper divisors (641185).

10899839 is an equidigital number, since it uses as much as digits as its factorization.

10899839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641184.

The product of its (nonzero) digits is 139968, while the sum is 47.

The square root of 10899839 is about 3301.4904210069. The cubic root of 10899839 is about 221.7209314324.

The spelling of 10899839 in words is "ten million, eight hundred ninety-nine thousand, eight hundred thirty-nine".